html, body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f7fb;
    color: #1f2937;
}

body {
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

.page-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 260px 1fr;
}

.top-bar {
    padding: 1.5rem 2rem 0;
}

.top-bar h2,
.surface-card h2,
.page-header h1 {
    margin: 0;
}

.eyebrow {
    margin: 0 0 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    opacity: 0.75;
}

.page-main {
    min-width: 0;
}

.side-nav {
    padding: 2rem 1.25rem;
    background: #0f172a;
    color: #f8fafc;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.brand-block h1 {
    margin: 0;
    font-size: 1.5rem;
}

.nav-caption,
.section-copy,
.muted-copy {
    margin: 0.35rem 0 0;
    color: #64748b;
}

.nav-caption {
    color: rgba(248, 250, 252, 0.72);
}

.nav-links {
    display: grid;
    gap: 0.5rem;
}

.nav-links a {
    padding: 0.75rem 0.9rem;
    border-radius: 0.75rem;
    color: rgba(248, 250, 252, 0.9);
    font-weight: 600;
}

.nav-links a.active,
.nav-links a:hover {
    background: rgba(148, 163, 184, 0.18);
}

.content {
    padding: 2rem;
}

.page-header,
.surface-card {
    background: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

.page-header {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 1rem;
}

.section-kicker {
    margin: 0 0 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    color: #475569;
}

.card-grid,
.detail-grid {
    display: grid;
    gap: 1.5rem;
}

.card-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: start;
}

.surface-card {
    padding: 1.5rem;
}

.table-shell {
    margin-top: 1rem;
    overflow-x: auto;
}

.portal-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 920px;
}

.portal-table th,
.portal-table td {
    padding: 0.85rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
}

.portal-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #475569;
}

.table-actions {
    white-space: nowrap;
}

.inline-link,
.secondary-link {
    color: #2563eb;
    font-weight: 600;
}

.secondary-link {
    align-self: center;
}

.detail-list {
    margin: 1rem 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.detail-list dt {
    margin: 0 0 0.25rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #64748b;
}

.detail-list dd {
    margin: 0;
    font-weight: 600;
}

.empty-state {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px dashed #cbd5e1;
    border-radius: 0.75rem;
    background: #f8fafc;
}

.empty-state h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
}

.feedback-banner {
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    border-radius: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.feedback-banner strong {
    margin-right: 0.25rem;
}

.feedback-banner.success {
    background: #ecfdf5;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.feedback-banner.error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: #dbeafe;
    color: #1d4ed8;
    font-size: 0.82rem;
    font-weight: 700;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

.status-revoked {
    background: #fee2e2;
    color: #b91c1c;
}

.status-pending {
    background: #fef3c7;
    color: #b45309;
}

.status-suspended {
    background: #e2e8f0;
    color: #334155;
}

.action-button {
    padding: 0.55rem 0.8rem;
    border: 0;
    border-radius: 0.6rem;
    background: #0f172a;
    color: #f8fafc;
    font: inherit;
    margin-right: 0.5rem;
}

.action-button.secondary {
    background: #cbd5e1;
    color: #0f172a;
}

.action-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.action-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.action-help {
    margin: 0;
    flex-basis: 100%;
}

.inline-input {
    min-width: 220px;
    padding: 0.55rem 0.7rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.6rem;
    font: inherit;
}

input {
    padding: 0.55rem 0.7rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.6rem;
    font: inherit;
    background: #fff;
    color: inherit;
}

@media (max-width: 960px) {
    .page-shell {
        grid-template-columns: 1fr;
    }

    .side-nav {
        gap: 1rem;
    }

    .nav-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .content,
    .top-bar {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .page-header {
        padding: 1.25rem;
        flex-direction: column;
    }

    .nav-links {
        grid-template-columns: 1fr;
    }
}